| From | Team | Fee | Apps | Goals | To | |
|---|---|---|---|---|---|---|
| 2000 | Manchester City | - | 12 | 0 | 2002 | (Player) |
| 2002 | Preston North End | £300,000 | 134 | 17 | 2006 | (Player) |
| 2005 | Norwich City | Loan | 8 | 0 | 2006 | (On loan) |
| 2006 | Norwich City | £450,000 | 54 | 6 | 2007 | (Player) |
| 2007 | Sunderland | £1,500,000 | 20 | 1 | 2008 | (Player) |
| 2008 | Fulham | £1,500,000 | 91 | 3 | 2012 | (Player) |
| 2012 | Blackburn Rovers | - | 23 | 1 | 2015 | (Player) |
| 2015 | AIK | - | 23 | 2 | 2016 | (Player) |